Changes in directory llvm/lib/CodeGen/SelectionDAG:
DAGCombiner.cpp updated: 1.280 -> 1.281
---
Log message:
Adjust offset to compensate for big endian machines.
---
Diffs of the changes: (+5 -7)
DAGCombiner.cpp | 12 +++++-------
1 files changed, 5 insertions(+), 7 deletions(-)
Index: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.280
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.281
--- llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.280 Fri Mar 23 17:13:36 2007
+++ llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Fri Mar 23 19:02:43 2007
@@ -2292,7 +2292,6 @@
N0 = N0.getOperand(0);
if (MVT::getSizeInBits(N0.getValueType()) <= EVTBits)
return SDOperand();
- ShAmt /= 8;
CombineSRL = true;
}
}
@@ -2308,12 +2307,11 @@
"Cannot truncate to larger type!");
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT::ValueType PtrType = N0.getOperand(1).getValueType();
- // For big endian targets, we need to add an offset to the pointer to load
- // the correct bytes. For little endian systems, we merely need to read
- // fewer bytes from the same pointer.
- uint64_t PtrOff = ShAmt
- ? ShAmt : (TLI.isLittleEndian() ? 0
- : (MVT::getSizeInBits(N0.getValueType()) - EVTBits) / 8);
+ // For big endian targets, we need to adjust the offset to the pointer to
+ // load the correct bytes.
+ if (!TLI.isLittleEndian())
+ ShAmt = MVT::getSizeInBits(N0.getValueType()) - ShAmt - EVTBits;
+ uint64_t PtrOff = ShAmt / 8;
SDOperand NewPtr = DAG.getNode(ISD::ADD, PtrType, LN0->getBasePtr(),
DAG.getConstant(PtrOff, PtrType));
AddToWorkList(NewPtr.Val);
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
